什么是美术语言？
Which two are examples of a mouse event?（） The user clicks the mouse. 。 The user moves the mouse into an item. 。 The cursor style changes from default to busy. 。 The user moves the mouse into the window title bar.。
You work as a database administrator for Certkiller .com. You want to administer your database servers，which are running on different host machines，using the Web-enabled grid control interface. You have configured the agent on the host machines. You have started the Oracle Database 10g Grid Control utility on your machine. Which two additional components would you configure to achieve this objective？（） Application Server Control。 Oracle Management Service。 Oracle Enterprise Manager Repository。 Oracle Enterprise Manager Database Control。
在制定行车计划时，若要求在一个小时内发出11个车次，车辆的周转时间均为70min，则最少需要投入多少车辆？
You notice a high number of waits for the db file scattered read and db file sequential read events in the recent Automatic Database Diagnostic Monitor (ADDM) report. After further investigation, you find that queries are performing too many full table scans and indexes are not being used even though the filter columns are indexed. Identify three possible reasons for this.（） Missing or stale histogram statistics。 Undersized shared pool。 High clustering factor for the indexes。 High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameter。 Oversized buffer cache。
老舍的最后一部长篇小说是（）
